CAD_SRC

HPD_SRC

1

GND

CAD_SINK

IN0p

VDD

HPD_SINK

GND

IN0n

VCC

OUT0p

CAD_INV

VCC

OUT0n

AUX_INp

2

3

4

5

6

7

8

11

10

12

13

14

15

16

17

35

36

34

33

32

31

30

29

26

27

24 23 22 21 20

25

SN75DP120

9

18

19

28

VCC

AUX_INn

LP#

SN75DP120

SLLSE08 – OCTOBER 2009

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RHH PACKAGE (TOP VIEW)

PIN FUNCTIONS

PIN

I/O

DESCRIPTION

SIGNAL

NO.

MAIN LINK INPUT PINS

IN0p/n

34, 35

DisplayPort Main Link Channel 0 Differential Input

IN1p/n

2, 3

DisplayPort Main Link Channel 1 Differential Input

IN2p/n

5, 6

DisplayPort Main Link Channel 2 Differential Input

IN3p/n

8, 9

DisplayPort Main Link Channel 3 Differential Input

MAIN LINK OUTPUT PINS

OUT0p/n

30, 29

DisplayPort Main Link Channel 0 Differential Output

OUT1p/n

26, 25

DisplayPort Main Link Channel 1 Differential Output

OUT2p/n

23, 22

DisplayPort Main Link Channel 2 Differential Output

OUT3p/n

20, 19

DisplayPort Main Link Channel 3 Differential Output

HOT PLUG DETECT PINS

HPD_SRC

11

Hot Plug Detect Output to the DisplayPort Source

The polarity and output level of HPD_SRC is set by the HPD_INV pin

HPD_SINK

15

pulldown

AUXILIARY DATA PINS

AUX_INp/n

17, 18

I/O

Bidirectional DisplayPort Auxiliary Data Line

CABLE ADAPTER DETECT PINS

CAD_SRC

12

Cable Adapter Detect Output to the DisplayPort Source

The polarity of CAD_SRC is set by the CAD_INV pin.

CAD_SINK

14

DisplayPort Cable Adapter Detect Input; No pulldown resistor on this pin.

LP#

33

Low Power Shutdown Mode

When LP# = H; Device in Active Mode

When LP# = L; Device in Shutdown mode. All main link outputs are disabled and pulled to

GND; Inputs ignored. HPD_SRC follows HPD_SINK.

An external capacitor may be required on this pin if it is connected to VCC by a pullup resistor.

See Application Information section.

(1)

(H) Logic High; (L) Logic Low

4

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